Power-pump



T. D. WEAVER. POWER PUMP.

APPLICATION FILEDIDECHI3, 1920.

2 SHEETS-SHEET l- T. D. WEAVER.

POWER PUMP.

APPLICATION Flu-:n 050.13. 1920.

Patented J ulyA 5, 1921.

@5g/Pb) @Hoz/n W MK THOMAS DESMONI) WEAVER, OF MANSFIELD, OYI-IIO, ASSIGNOR T0 EUMPHRYS MANUFACTURING COMPANY, OF MANSEIELD, OHIO, A CORPORATION 0F OHIO'.

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To all whom it may concern:

Be it known that I, Tiioiuns DnsMoND WEAVER, a citizen of the United States, residing in the city of Mansfield, county of Richland, and State of Ohio, have invented new and useful Improvement in Power- Pumps, of which the following is a specification.

My invention relates to power pumps, more especially those of the horizontal double acting type, such for example as those described and claimed in applications for patents filed by me May 7, 1920, Serial Nos. 379,658, and 379,659, which are peculiarly adapted for pumping water into water supply or storage tanks.

The primary object of my present invention is to adapt pumps of the above general character to pump airconcurrently with the water so that they can be conveniently and efllciently used for pumping water and air into compression water supply tanks, by the compressed air in which the water is forced to a level above the tank, as from a tank in the basement or cellar of a building to the several stories above.

I attain this end in a simple and elfective manner in the specific instance of the power pum shown in my aforesaid application for atent Serial No. 379,658 by providing an air intake leading to air holes opening through the seats of the water suction valves beneath said suction valves, so that as said valves open alternately as the water is drawn therethrough by the plunger, the air will at the same time be drawn through said air openings alternately by the plunger and forced through the discharge valves concurrently with the water.

In order that the nature and scope of'my invention may be clearly understood, I shall first describe in detail the mode in which I at present prefer to carry the invention into effect and then point out the various features and define the boundaries of my invention in the claims.

Reference is to be had by numbers to the accompanying drawings forming part of this specification in which like parts are designated by the same numbers in all the iigures.

Figure 1 is a side partly sectional elevation of a horizontal double acting pump einbodying my invention.

Speceaton of Letters Patent.

Fig. 2 is a cross sectional elevation of the same on'the line 2 2 Fig. 1. y Fig. 3'is an enlarged detail sectionalrvicw on the line 3 3 Fig. 1. Fig. l'is an enlarged cross sectional view v on the line 4 4, Fig. 2.

In the drawings I have shown my present air pumping improvement applied, as an example of my invention, to the power pump -described and claimed in my aforesaid prior application forlatent Serial Yo.

379,658, to which reference is to be made in reading this specification.-

So far as possible I have used the same numbers to designate corresponding parts in the present drawings and in the drawings of my aforesaid prior application, Serial No. 379,658.

In the drawings, 5 designates the base ofv the pump on which is mounted in suitable bearings the driven pulley 6 and pinion 7 on a common shaft 8, the geared crank wheel 9 on the shaft`21 engaged by the pinion 7, the sister crank wheel 10 on the shaft 21, and a loose pulley 11 on a spring pressed compensating bearing 12. To the front of the base is rigidly secured by bolts 13 and 14C, a bracket base 15 on top of which is bolted the preferably electric driving motor 16, from the pulley 17 of which runs a belt 18 under the compensating `loose pulley 11 to the driven pulley 6, so that the crank wheels 9 and 10 are driven by the motor.

The bracket base is, by Areference, cast integrally with guides 19 an 2O on each end for the plunger 22, which is reciprocated through a cross head 23 and sister connecting crankrods 24 and 25, by the sister crank wheels 9 and 10, and thus by the motor 16.

v By this construction and arrangement, the motor and its bracket base 15 are rigidly and compactlysecured to the pump base 5, and the plunger guides 19 and 20 are held in accurate alinement with the plunger; further, the compensating loose pulley 11, reduces the high starting torque of the motor when the pump is started'under full pressure as is required in pneumatic tank and other intermittent service.

To secure the greatest strength, simplicity and compactness in construction, I prefer to cast the base 5 as best shown in Figs. 2 and 3, integrally with the plunger cylinder 26, the vacuum and primingchamber 27, the

I Y Patented July 5, 1921. Application lerl December 13,1920. Serial No. 430,200.

plunger and suction valve chambers 28 and 29 and the air and discharge valve chamber 30, the end walls ot the plunger' and suction valve chambers 28 and 29 and of the discharge valve chaml'ier 30, forming vertical continuations of the transverse standards 31 and 32 et the base 5, and being formed with the opposite plunger openings 323, which are closed by the end plunger guides.

The vacuum and priming chamber 27A eX- tends lengthwise alongside the suction valve chambers 28 and 29, and the air and discharge valve chamber 30, being separated therefrom. by the vertical longitudinal wall 35 extending downward from the top of the discharge valve chamber 30, and the vacuum and priming chamber 27 is continued transversely beneath the lower edge of said longitudinal wall 35, underneath the suction valve openings 36 and 37.`

rlhe plunger and suction valve chambers 28 and 29 extend I,upward between the open ends ot the plunger cylinder 2G and the end walls 3l and 82, and then longitudinally inward over the suction. valve openings 36 and 37, to a partition 38 dividing them and rising trom the top wall 39 ot the transverse vacuum and priming chamber 27 to the bottom wall 40 et the air and discharge valve chamber 80, in which the discharge valve openings 41 and 42 are cast concentrically over the suction valve openings 3G and 37 in the suction. valve wall 39.

The discharge valve chamber 30 is eX- tended downward alongside the suction valve chambers 28 and 29 and the transverse leg of the vacuum and priming chamber 27, beingv separated therefrom by a vertical longitudinal wall 48 rising from the top ot the plunger cylinder, and opens at the discharge outlet 29. The suctiony and discharge valve openings are thus alined directly above the axis of the plunger.

Lengthwise or' the vacuum and priming chamber 27 and rising medially from the bottom thereoi2 to within a short distance or the top is east a partition wall 44, and above the priming chamber thus formed between the wall 44 and the depending wall 35 is formed in the top of the priming` chamber a priming opening 45 closed by a lremovable plug 46. Se that 1by removing the plug, and once lilling the priming chamber 27 with water, the priming chamber will remain filled and the suction valves remain submerged at all times and the pump thus be made self-priming for intermittent operation.

lln the suction valve openings 86 and 87, which are internally threaded, are screwed removable valve seats 47, for the two suction valves 48, and in the discharge' valve openings 41 and 42, are fitted and dropped vflanged valve seats 49 for the discharge valves 50, the discharge valve openings being made larger than the suction valvesand seats 48 so that the suction Vvalves and seats can be removed therethrough for repairs 0r replacement to the valves or their seats.

Tapped holes are formed in the center of the suction. valve seats 47, in which are screwed the lower ends of vertical studs 51, which serve as guides for both the suction valves 48 and discharge valves 50 and their springs. The guide studs 51 pass through holes in the discharge valve seats 49 and are formed with shoulders 52 above the discharge valves seats, so that by screwing the guide studs 5l down inthe tapped holes in the suction valve seats, the discharge alve seats 49 are held firmly down in the discharge valve openings.

ln the top of the air and discharge valve chamber 30, is Yformed a large opening closed by a removable cover 53, giving access to all the valves and valve seats.

A#lll theparts of the pump and their functions so lar described are substantially the same as describedand claimed in my aforesaid prior application tor PatentNo. 379,- 65S, and no claim is made thereto in this application except as improved, described and defined in the claims hereafter oll0wing.

'llo adapt this specific example of power pump to pump air concurrently with the water tor the purpose, particularly, of supplying compression water tanks with both compressed air and water, l lead the air through an air intalre, 54, to air holes 55, opening through the suction valve seats 47, beneath the suction valves 48, so that as said suction valves open and close as the water is orawn therethrough by the plunger, the suction valves 48 will at the same time open and close the air openings 55, to permit the air to be drawn therethrough by the plunger concurrently with the water into the suction chamber and thence 'forced with. the water through the discharge.

To connect the air valve openings 55 with the air intake l prefer, in this example ot my invention, to drill a hole or duct 56, from outside the cylinder casting to a point in the center of; this casting midway between the two suction valve seats 47, into a cored Vhole or duct 57 connecting the two tapped suction valve openings 36,937, in which the suction valve seats 47 lit. A peripheral groove 58 is by preference turned in and outside ot' each suction valve seat 47 beneath the air openings 55, so that the air passes in through the ducts 56 and 57 and the peripheral ducts 58, and upward through the valve openings 55 as before described.

l prefer to [it a pet cock 59 into the tapped end ot the intake duct 56, to regulate the supply ot air to be pumped with the water as required.

By this simple and eli'ective construction and arrangement, I obtain a positive opening of the air valves and equal intake of air from outside into the pulsation chamber at each stroke o'f the plunger, which air is then forced with the Water through the discharge and into the tanks as described, Without the use of any outside arrangement of kcheck valve or separate air compressor. v

lt is evident that my improvement is applicable to other types of pumps than that herein shown and described and that the method of carrying the invention into practice may be greatly varied Without departing from the boundaries of my invention, for a definition of the spirit and scope of which reference is to be had to the following claims.

I claim:

l. A povver pump having a plunger cylinder, a Water intake or vacuum chamber, a suction valve chamber, a suction valve seat formed with a Water valve opening and with an air valve opening, an air intake connected with said air opening, a discharge valve chamber, a plunger, a discharge valve, and a suction valve to open and close both said Water and air valve openings simultaneously.

2. A power pump having a plunger cylinder, a Water intake or vacuum chamber, a

suction valve chamber, a suction valve seat 'formed With separate Water and air valve openings, an air intake connected With said air valve opening, a discharge valve chainber, a plunger, a discharge valve, and a sucvalve openings, a peripheral air' duct surrounding the valve seat and Water valve opening, and leading to the air valve opening, and an air intake connected with the peripheral air duct. y

4. A povver pump having vacuum, suction and discharge valve chambers, twin suction valve openings, suction valve seats fitted removably in theV suction valve openings and formed With separate Water and air valve openings and peripheral air ducts, an air duct connecting the twin peripheral air ducts, and an air intake duct leading into said connecting air duct.

THOMAS DESMOND WEAVER. 

